commit 335e192a3fa415e1202c8b9ecdaaecd643f823cc upstream.

These are useful in debugging shadow paging.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>